Polishing or buffer wheel



N. A. STRAND POLISHING 0R BUFFER WHEEL Dec. 27, 1927.

Filed Feb. 28. 1927 Patented Dee. 2.7, 19.27.

PATENT OFFICE.

NELS A. STRAND, OF EVANSTON, ILLINOIS.

POLISHING OB BUFFER WHEEL.

Application filed. February 28, 1927. Serial No. 171,514.

'lhe invention relates to polishing or buffer Wheels in which a series of longitudinally extending strips of material, such as felt, are used in the treatment of surfaces.

One object of the invention is to provide an improved wheel which is adapted for use in treating surfaces of Woodto which a filler has been applied and whereby the filler will be forced into all of the pits of the W006i.- has been found that the filler "Was not always forced into all of thepits, and this resulted in an uneven surface when the Wood had received its finishing treatment.

1 Other objects of the invention Will appear from the detail description.

The invention consists in the several novel features hereinafter set forth and more particularly defined by claims at the conclusion hereof.

in the drawings: Fig. 1 is a plan of a wheel embodying the invention. Fig. 2 is a side elevation. Fin. is a longitudinal section, one of the felt strips being shown.

in position assumed when the Wheel is in use.

Fig. i an inverted plan of a portion of the Wheeh showing the position assumed by the strips while the wheel is applied to a surface.

"lhe invention enennolilied in a Wheel comprising a cast hub El which is secured in any suitable manner to a shaft which extent s through a suitable handle l and is connected to be driven by a flexible shaft 5 to permit the polishing Wheel to be Inai'iipulated over the surfaces to be treated. The body of the Wheel. comprises a series of tl-shaped sheet metal clips each comprising; a base 6 and sides 7 and is seated in a longitudinal groove 8 formed in the rim of the Wheel body 3 and secured therein by screws The clips extend radially from the rim of the Wheel body. A substantially flat strip of felt ll secured between the sides 7 of each clip. The ends of each strip of felt project longitudinally beyond the cuts of the retaininp; clips and the top and bottom faces of the Wheel-body as at 12 and 13 to leave ends which are flexible into the plane of rotation, as shown in Fig. t and by dotted lines in Fig. 2. The ends 12 and 13 of the strips ll. are preferably dirergent or flared outwardly. The present inyentitui contemplates the rotation of the Wheel in a plane substantially parallel with the surface to be treated, and for that purpose in the use of devices heretofore, it

the ends 12 and 13 project beyond the body of the wheel, so that, in rotation, as the wheel is pressed into contact with the surface to be treated, the ends of the strip will lie): substantially into the plane of rota tion so that portions of their side faces will contact With the surface. When the ends of the entire series of strips are so flexed, they Will have an almost continuous felt surface by which all portions of the surface will be reached as the Wheel is nioved inan ually over the surface.

In the application of filler to surfaces of Wood, such as furniture, it is important, when a highly polished surface is desired to distribute the tiller into all of the pits the wood. in practice, it has been found that a wheel in which the strips extend longitudinally of the axis of the Wheel and are provided with ends which may lien into the rotation of the wheel. and so their ends will lap one another, the iiller will be thoroiughly distributed so that all of the pits 'Wlll be tilled. The ends of the strips at the lower side of the Wheel only are applicable to a surface While the Wheel is rotating through the flexible shaft, and for that reason, this result may be attained by strips which project only from one side of the Wheel body. When the strips are of sullicient length to project from both faces of the Wheel, they may be reversed when the ends projecting from one face have become Worn or unusable, or the Wheel-body may be reversed to cause the ends of the strips at the other face to project downwardly from the bottom face so they Will also be usable.

The invention exemplifies a polishing or buffer wheel in which the strips of felt or the lilte extend longitiulinally of the axis of the Wheel and are provided with ends which are flexible transversely in a plane coincident with the surface to be treated, and which feature has been found. to be efficient in distributing the Wood tiller so that all the pits will be packed with the filler, the surface siinultaneously smoothed and the excess filler removed, preparatory to the application of the finishing treatment.

The lllVGHlJlOD is not to be understood as restricted to the details set forth, since these may be modified Within the scope of the :u pended claims, Without departing from the. spirit and scope of the invention.

Ill

lthi

Having thus described the invention, what I claim as new and desire to secure by Letters Patent, is:

1. In a-wheel of the, character described, the combination of a driven wheel-body and a series of strips of flexible material secured to the body, extending outwardly from the body and longitudinally of the wheel-axis, and provided with free portions projecting beyond the plane of one side of the wheelbody so they will be simultaneously and transversely flexed by a flat surface subtaneously and transversely flexed by a surface against which the wheel is held substantially into its plane so they will remain in contact with the'surface substantially throughout the rotation of the body.

3. In a Wheel of the character described, the combination of a'driven wheel-body, a series of strips of flexible material extending outwardly from the body and longitudinally of the wheel-axis, and provided with free portions projecting beyond the plane of one side of the wheelbody so they will be simultaneously and transversely flexed by a flat surface substantially into its plane so they will remain in contact with the surface' throughout the rotation of the body, and clips for the strips secured to the body and extending substantially to the outer ends of the strips.

4. In a wheel of the character described, the combination of a driven wheel-body adapted to be secured to a shaft, a series of strips of flexible material extending outwardly from the body and longitudinally of the wheel-axis and provided respectively with free portions projecting beyond the planes of both sides of the wheel-body so they will be simultaneously and traiisversely flexed by a surface against which the wheel is held substantially into its plane so they will remain in contact with the surface substantially throughout the rotation of the body, and clips for the strips, secured to the body and extending substantially to the outer ends of the strips.

5. In a wheel of the character described, the combination of a driven wheel-body and a series of strips of flexible material secured to the body, extending outwardly from the body longitudinally of the wheel-axis, and provided with free portions projecting beyond the plane of one side of the wheel-body so they will be simultaneously and transversely flexed by a flat surface substantially into its plane so they will remain in contact with the surface substantially throughout the rotation of the body, the free portions being longer at their outer margins than at their inner margins.

6. In a wheel of the character described, the combination lof a driven wheel-body adapted to be secured to a shaft, and a series of strips of flexible material secured to the body, extending outwardly from the body and longitudinally of the wheel-axis and provided respectively with free portions projecting beyond the planes of both sides of the wheel-body, so they will be simultaneously and transversely flexed by a surface against which the wheel is held substantially into its plane so they will remain in contact with the surface substantially throughout the rotation of the body, the projecting portions having outwardly divergent edges.

7. In a wheel for polishing, rubbing or the like, the combination of a movable wheelbody, means for rotating the body, a handle on the body whereby it may be manipulated over a surface, and a series of strips of flexible material secured to the body, extending longitudinally of the wheel-axis and provided with free portions projecting beyond the plane of one side of the body so they will be transversely flexed by a flat surface substantially into its plane, so they will remain in contact with said v urface continuously during the rotation of the wheel against said surface, the projecting portions being longer at their outer margins than at their inner margins.

Signed at Chicago, Illinois, this 9th day of February, 1927.

NELS A. STRAND. 

